Band extension



FIG. 1 is an isometric view of an embodiment of our design for a band extension;

FIG. 2 is a top view of the design for a band extension shown in FIG. 1;

FIG. 3 is a bottom view of the design for a band extension shown in FIG. 1;

FIG. 4 is a left side view of the design for a band extension shown in FIG. 1;

FIG. 5 is a right side view of the design for a band extension shown in FIG. 1;

FIG. 6 is an end view of the design for a band extension shown in FIG. 1; and,

FIG. 7 is a second end view of the design for a band extension shown in FIG. 1.

The broken lines in the Figures are for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a band extension, as shown and described. 